What is the concept of successive approximation used for MWD training?

• A. It's when MWDs are taught behaviors by rewarding responses that are progressively more like the desired target response.
• B. It's when rewards are delivered randomly.
• C. It is a punishment system.
• D. It is the name for a specific sniffing technique.

Answer: (A)

Successive approximation in MWD training is shaping the dog’s behavior by reinforcing responses that gradually resemble the final target. You start with a behavior the dog can perform reliably and reward it, then raise the criteria so the dog must perform a closer approximation to the desired action to earn reinforcement, and continue until the exact behavior is shown. This positive-reinforcement approach builds complex skills piece by piece. For example, in a scent-detection task you might first reward any sniff toward the scent, then reward approaching the area, then a focused sniff near the source, and finally the correct alert at the source. It’s about guiding progress with rewards, not using random rewards, punishment, or a single sniffing technique.